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Elastic behavior of weakly cemented contact
Author(s) -
Langlois V.
Publication year - 2014
Publication title -
international journal for numerical and analytical methods in geomechanics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.419
H-Index - 91
eISSN - 1096-9853
pISSN - 0363-9061
DOI - 10.1002/nag.2342
Subject(s) - contact mechanics , elastic modulus , materials science , radius , contact theory , contact area , composite material , mechanics , geotechnical engineering , structural engineering , physics , geology , engineering , finite element method , computer science , computer security
Summary We investigate the elastic behavior of weakly cemented contact. We show that the radial distribution of stresses and the stiffnesses of a cemented contact are governed by the ratio a / R Λ, where R , a , and Λ are, respectively, the grain radius, the contact size, and the ratio of the elastic moduli of cement and grains. Moreover, we show that a cemented contact is always less stiff than a Hertzian contact having a similar size. Finally, we propose accurate approximate expressions of the contact stiffnesses. Copyright © 2014 John Wiley & Sons, Ltd.